I study basically by this technique: when one source becomes boring or too hard, I just switch to another. Often enough, new perspective shows that I should drop some of the stuff that was previously halted, and so would’ve wasted time and suffered needlessly if tried to force it on the first try. If the topic remains important, going around via redundant amount of literature on basically the same topic ultimately allows to understand it deeply and intuitively.
I study basically by this technique: when one source becomes boring or too hard, I just switch to another. Often enough, new perspective shows that I should drop some of the stuff that was previously halted, and so would’ve wasted time and suffered needlessly if tried to force it on the first try. If the topic remains important, going around via redundant amount of literature on basically the same topic ultimately allows to understand it deeply and intuitively.